What is TCPI (to-complete performance index)?

    The to-complete performance index is the cost performance the remaining work needs to achieve to finish on budget.

    Also written as TCPI

    Compare TCPI with the current CPI. If the project needs to perform far better than it has so far to stay on budget, the budget is unlikely to hold.

    Formula

    TCPI = (BAC − EV) ÷ (BAC − AC)

    Worked example

    A project has a $12 million budget (BAC). At the reporting date, $5.2 million of work was planned (PV), $4.8 million has been earned (EV) and $4.55 million has been spent (AC). TCPI = ($12m − $4.8m) ÷ ($12m − $4.55m) = 0.97, below the current CPI of 1.05, so the budget looks achievable.

    Related terms

    Cost performance index

    CPI

    Shows how much value of work is earned for each dollar spent.

    Formula and example

    Estimate to complete

    ETC

    The forecast cost of the remaining work, from the reporting date to the end.

    Formula and example

    Budget at completion

    BAC

    The total approved budget for the work being measured.

    PreviousVAC (Variance at completion)NextS-curve

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